Abstract
Here, we demonstrate dispersion of graphene nanoplatelets (GNPs) in ethylene glycol (EG), a polar dispersion medium, by a liquid-phase exfoliation method involving sonication and centrifugation. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy are used for qualitative and quantitative characterization of the graphene dispersions. TEM micrographs confirm the exfoliation and production of monolayer GNPs after sonication. Statistical analysis of TEM micrographs shows that increasing the sonication time increases the degree of exfoliation of GNPs. Raman spectroscopy studies also show that high-power probe sonication exfoliates multi-layer GNPs to few-layer GNPs. The proposed method is promising to provide monolayer and few-layer graphene dispersed in a polar medium, practical to multiple engineering applications including polymer nanocomposites.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
